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1. 发明授权

US12035081B1 Route and wavelength assignment method and device based on all-optical wavelength conversion 有权
公开(公告)号：US12035081B1
公开(公告)日：2024-07-09
申请号：US17912253
申请日：2021-09-24
申请人： SOOCHOW UNIVERSITY
发明人： Gangxiang Shen , Xinxin Bu
IPC分类号： H04Q11/00 , H04B10/50
CPC分类号： H04Q11/0005 , H04B10/506 , H04Q11/0067 , H04Q2011/0011 , H04Q2011/0084 , H04Q2011/0086
摘要： The present invention provides a route and wavelength assignment method based on all-optical wavelength conversion, including the steps of: introducing an all-optical wavelength converter in the network; placing a corresponding number of all-optical wavelength converters in a network node according to the principle of sparse wavelength converter placement; establishing an optical channel for the service, in which the establishing an optical channel includes the steps of: establishing an OSNR awareness route and wavelength assignment algorithm model that includes transmission loss, ASE noise and OSNR penalty; and calculating the OSNR of various routes by using the OSNR awareness route and wavelength assignment algorithm model and establishing the optical channel using the route with the highest OSNR and accomplishing wavelength assignment. The present invention can reduce the cost of all-optical wavelength conversion and the impact of the OSNR penalty on the network performance improvement.

2. 发明授权

US12009866B2 Method and an apparatus for transitioning between optical networks 有权
公开(公告)号：US12009866B2
公开(公告)日：2024-06-11
申请号：US18181286
申请日：2023-03-09
申请人： AT&T Intellectual Property I, L.P.
发明人： Ricky Perry , Kent McCammon
IPC分类号： H04B10/2575 , H04B10/27 , H04B10/291 , H04B10/516 , H04B10/572 , H04J14/02 , H04Q11/00
CPC分类号： H04B10/572 , H04B10/25752 , H04B10/25753 , H04B10/27 , H04B10/2912 , H04B10/516 , H04J14/0212 , H04Q11/0062 , H04Q2011/0011 , H04Q2011/0088
摘要： Aspects of the subject disclosure may include, for example, receiving a first optical signal from a first optical network via a first port of the wavelength converter, receiving a second optical signal from a second optical network via a second port of the wavelength converter, modulating the first optical signal with the second light signal to generate a third optical signal, eliminating the first light signal from the third optical signal to generate a fourth optical signal, and transmitting the fourth optical signal through the second optical network. The first optical signal can include a first digital signal modulated onto a first light signal of a first wavelength, the second optical signal can include a second light signal can include a second wavelength different from the first wavelength, and the fourth optical signal can include the first digital signal modulated onto the second light signal. Other embodiments are disclosed.

3. 发明公开

US20240179439A1 OPTICAL NODE DEVICE, OPTICAL COMMUNICATION SYSTEM, AND WAVELENGTH CONVERSION CIRCUIT 审中-公开
公开(公告)号：US20240179439A1
公开(公告)日：2024-05-30
申请号：US18242175
申请日：2023-09-05
申请人： Fujitsu Limited
发明人： Takeshi HOSHIDA , Yu TANAKA
IPC分类号： H04Q11/00
CPC分类号： H04Q11/0005 , H04Q2011/0011 , H04Q2011/0016
摘要： An optical node device includes: an optical switch coupled to a multicore fiber that has N (N is an integer of 2 or more) cores; a multiplexer-demultiplexer coupled to a single-core fiber that multiplexes and transmits optical signals in M (M is an integer of 2 or more; and M≤N) bands; a maximum of (M−1) wavelength converters provided between the optical switch and the multiplexer-demultiplexer; and a control circuit that controls the optical switch, the wavelength converter or both of the optical switch and the wavelength converter and the control circuit controls the optical switch or the wavelength converter or both of the optical switch and the wavelength converter such that, of the optical signals in the M bands, an optical signal in at least one band is not subject to wavelength conversion and an optical signal in another band is subject to the wavelength conversion.

4. 发明授权

US11979226B2 Wavelength cross connect device and wavelength cross connect method 有权
公开(公告)号：US11979226B2
公开(公告)日：2024-05-07
申请号：US17794347
申请日：2020-02-04
申请人： Nippon Telegraph and Telephone Corporation
发明人： Hiroki Kawahara , Takeshi Seki , Sachio Suda , Kohei Saito , Kenta Hirose
IPC分类号： H04J14/02 , H04Q11/00 , H04B10/29 , H04B10/291
CPC分类号： H04J14/0212 , H04Q11/0005 , H04Q11/0062 , H04B10/29 , H04B10/291 , H04J14/02 , H04Q2011/0011 , H04Q2011/0016 , H04Q2011/0083
摘要： A wavelength cross-connect device performs relay processing, the relay processing being such that wavelength multiplexed signal lights, which are multiband transmitted from a plurality of routes, are demultiplexed into different wavelength bands, and for each route, respective optical signals of the different wavelength bands are amplified, then subject to route change by WSSs and outputted to output side routes M. The device includes C-band WXC units that are the same in total number as the wavelength bands of the optical signals of the respective wavelength bands and perform relay processing on optical signals of a specific wavelength band of the different wavelength bands.

5. 发明申请

US20180270550A1 LIGHT DETECTION MODULE AND LIGHT MODULE 审中-公开
公开(公告)号：US20180270550A1
公开(公告)日：2018-09-20
申请号：US15986591
申请日：2018-05-22
申请人： Hisense Broadband Multimedia Technologies, Ltd. , Hisense USA Corp. , Hisense International Co., Ltd.
发明人： Huani ZHANG
IPC分类号： H04Q11/00 , H04B10/572 , H04J14/02 , H04B10/50
CPC分类号： H04Q11/0005 , H04B10/506 , H04B10/572 , H04J14/02 , H04Q2011/0011 , H04Q2011/0015 , H04Q2011/0016
摘要： A light detection module includes: a TO base and a TO cap; wherein the TO base is fixedly provided thereon with a first optical sensor, a support frame and a support base; the support frame is fixedly provided thereon with a beam splitter, and the beam splitter and the first optical sensor are at an angle of 45 degrees; an upper surface of the support base is fixedly provided thereon with an optical resonator and a second optical sensor, the optical resonator is located between the beam splitter and the second optical sensor, and the optical resonator, the second optical sensor and the beam splitter are on a straight line parallel to a surface of the TO base; and the TO cap is provided thereon with an opening, and the opening, the first optical sensor and the beam splitter are on a straight line perpendicular to the surface of the TO base.

6. 发明授权

US09992560B2 Light detection module and light module 有权
公开(公告)号：US09992560B2
公开(公告)日：2018-06-05
申请号：US15085401
申请日：2016-03-30
申请人： Hisense Broadband Multimedia Technologies, Ltd. , Hisense USA Corp. , Hisense International Co., Ltd.
发明人： Huani Zhang
IPC分类号： H04B10/08 , H04B17/00 , H04J14/00 , H04B10/04 , H04B10/12 , G01N21/00 , G01B9/02 , H04Q11/00 , H04J14/02
CPC分类号： H04Q11/0005 , H04B10/506 , H04B10/572 , H04J14/02 , H04Q2011/0011 , H04Q2011/0015 , H04Q2011/0016
摘要： A light detection module includes: a TO base and a TO cap; wherein the TO base is fixedly provided thereon with a first optical sensor, a support frame and a support base; the support frame is fixedly provided thereon with a beam splitter, and the beam splitter and the first optical sensor are at an angle of 45 degrees; an upper surface of the support base is fixedly provided thereon with an optical resonator and a second optical sensor, the optical resonator is located between the beam splitter and the second optical sensor, and the optical resonator, the second optical sensor and the beam splitter are on a straight line parallel to a surface of the TO base; and the TO cap is provided thereon with an opening, and the opening, the first optical sensor and the beam splitter are on a straight line perpendicular to the surface of the TO base.

7. 发明申请

US20180007454A1 Fast optical switch and its applications in optical communication 审中-公开
公开(公告)号：US20180007454A1
公开(公告)日：2018-01-04
申请号：US15731683
申请日：2017-07-17
申请人： Mohammad A. Mazed , Rex Wiig
发明人： Mohammad A. Mazed , Rex Wiig , Angel Martinez
IPC分类号： H04Q11/00
CPC分类号： H04Q11/0005 , G02B6/00 , G02B6/3592 , G02F1/0054 , G02F1/0147 , G02F1/19 , G02F1/3132 , G02F1/3521 , G02F1/3536 , G02F1/365 , G02F2201/12 , G02F2202/32 , G02F2203/585 , H04J14/0212 , H04Q2011/0011 , H04Q2011/0016
摘要： A fast optical switch can be fabricated/constructed, when vanadium dioxide (VO2) ultra thin-film or vanadium dioxide (VO2)/two-dimensional (2-D) material or a cluster of vanadium dioxide particles (less than 0.5 microns in diameter) embedded in an ultra thin-film of a polymeric material or in a mesh of metal nanowires is activated by either an electrical pulse (a voltage pulse or a current pulse) or a light pulse just to induce rapid insulator-to-metal phase transition (IMT) in vanadium dioxide ultra thin-film or vanadium dioxide particles embedded in an ultra thin-film of a polymeric material or in a mesh of metal nanowires. The applications of such a fast optical switch for an on-Demand optical add-drop subsystem, integrating with or without a wavelength converter are also described.

8. 发明申请

US20140205287A1 OPTICAL SWITCH AND PROTOCOLS FOR USE THEREWITH 审中-公开
标题翻译：光开关及其使用协议
公开(公告)号：US20140205287A1
公开(公告)日：2014-07-24
申请号：US14225194
申请日：2014-03-25
申请人： Rockstar Consortium US LP
发明人： Guo-Qiang Wang
IPC分类号： H04Q11/00
CPC分类号： H04Q11/0005 , H04B10/27 , H04J14/02 , H04Q11/0001 , H04Q11/0003 , H04Q11/0062 , H04Q2011/0011 , H04Q2011/0016 , H04Q2011/0039 , H04Q2011/0069 , H04Q2011/0073 , H04Q2011/0086 , H04Q2011/009
摘要： A method of establishing a data connection between terminal switching nodes in a network and switching nodes for implementing the method. The method involves switching nodes participating in a network layer wavelength routing (WR) protocol to determine the next hop switching node for every possible combination of terminal nodes based on the network topology. The method also involves the switching nodes participating in a network layer wavelength distribution (ND) once the data connection is to be established. The WR protocol determines the path used through the network, while the WD protocol assigns wavelengths on each link between switching nodes. The wavelengths may be different on different optical links. The switching nodes include wavelength converters with an optical switch or optoelectronic converters with a digital electronic switch. A digital electronic switch can also provide signal reformatting. Advantages of using potentially different wavelengths along various segments of a single end-to-end connection yields increased wavelength efficiency.
摘要翻译：一种在网络中的终端交换节点和切换节点之间建立数据连接以实现该方法的方法。该方法涉及交换参与网络层波长路由（WR）协议的节点，以基于网络拓扑为每个可能的终端节点组合确定下一跳交换节点。一旦建立数据连接，该方法还涉及参与网络层波长分布（ND）的交换节点。 WR协议确定通过网络使用的路径，而WD协议在交换节点之间的每个链路上分配波长。波长在不同的光链路上可能不同。开关节点包括具有光开关的波长转换器或具有数字电子开关的光电转换器。数字电子开关还可以提供信号重新格式化。沿着单个端对端连接的各个部分使用潜在的不同波长的优点产生增加的波长效率。

9. 发明申请

US20130202298A1 OPTICAL SWITCH AND PROTOCOLS FOR USE THEREWITH 审中-公开
标题翻译：光开关及其使用协议
公开(公告)号：US20130202298A1
公开(公告)日：2013-08-08
申请号：US13797255
申请日：2013-03-12
申请人： Guo-Qiang Wang
发明人： Guo-Qiang Wang
IPC分类号： H04Q11/00
CPC分类号： H04Q11/0005 , H04B10/27 , H04J14/02 , H04Q11/0001 , H04Q11/0003 , H04Q11/0062 , H04Q2011/0011 , H04Q2011/0016 , H04Q2011/0039 , H04Q2011/0069 , H04Q2011/0073 , H04Q2011/0086 , H04Q2011/009
摘要： A method of establishing a data connection between terminal switching nodes in a network and switching nodes for implementing the method. The method involves switching nodes participating in a network layer wavelength routing (WR) protocol to determine the next hop switching node for every possible combination of terminal nodes based on the network topology. The method also involves the switching nodes participating in a network layer wavelength distribution (WD) once the data connection is to be established. The WR protocol determines the path used through the network, while the WD protocol assigns wavelengths on each link between switching nodes. The wavelengths may be different on different optical links. The switching nodes include wavelength converters with an optical switch or optoelectronic converters with a digital electronic switch. A digital electronic switch can also provide signal reformatting. Advantages of using potentially different wavelengths along various segments of a single end-to-end connection yields increased wavelength efficiency.
摘要翻译：一种在网络中的终端交换节点和切换节点之间建立数据连接以实现该方法的方法。该方法涉及交换参与网络层波长路由（WR）协议的节点，以基于网络拓扑为每个可能的终端节点组合确定下一跳交换节点。一旦数据连接建立，该方法还涉及参与网络层波长分布（WD）的交换节点。 WR协议确定通过网络使用的路径，而WD协议在交换节点之间的每个链路上分配波长。波长在不同的光链路上可能不同。开关节点包括具有光开关的波长转换器或具有数字电子开关的光电转换器。数字电子开关还可以提供信号重新格式化。沿着单个端对端连接的各个部分使用潜在的不同波长的优点产生增加的波长效率。

10. 发明授权

US08385739B2 Encoding of wavelength converter systems 有权
公开(公告)号：US08385739B2
公开(公告)日：2013-02-26
申请号：US12711386
申请日：2010-02-24
申请人： Young Lee , Greg Bernstein , Jianrui Han
发明人： Young Lee , Greg Bernstein , Jianrui Han
IPC分类号： H04B10/00
CPC分类号： H04Q11/0005 , H04J14/0257 , H04J14/0258 , H04J14/0267 , H04J14/0269 , H04Q11/0062 , H04Q2011/0011 , H04Q2011/0073 , H04Q2011/0086
摘要： An apparatus comprising a path computation element (PCE) configured to perform a path computation using a wavelength converter (WC) pool information based on a dynamic WC pool model, wherein the dynamic WC pool model comprises information regarding WC pool usage state represented using a WC pool usage state vector, and wherein the information regarding WC pool usage state is communicated to the PCE using a WC usage state Type-Length-Value (TLV) that indicates an available WC in a WC pool, a used WC in the WC pool, or both. Also disclosed is a network component comprising at least one processor configured to implement a method comprising receiving a WC usage state TLV comprising information regarding WC pool usage state, establishing a WC pool usage state vector using the information in the WC usage state TLV, and calculating a WC pool connectivity matrix based on the WC usage state vector.

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